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serg [7]
3 years ago
8

Find the total surface area of this cone.

Mathematics
1 answer:
julsineya [31]3 years ago
7 0

Answer:

A = πr² = B

A = π(8)² = B

A = (3.14)(64) = B

A = 200.96 m = B

A = πrl + B

A = π(8)(25) + 201

A = 628 + 201

A = 829 m

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Ejsodndodndodjeosndi??
nalin [4]
Itxutxitxikhxkyztidurdutzktxgxkh
5 0
3 years ago
The diameter of 0 gauge copper wire is 8.252 mm. Find the resistance (in ω) of a 2.40 km length of such wire used for power tran
VashaNatasha [74]

d = diameter of the copper wire = 8.252 mm

r = radius of the copper wire = d/2 = 8.252 mm /2 = 4.126 mm = 0.004126 m

A = area of cross-section of the copper wire = πr² = (3.14) (0.004126)² = 53.5 x 10⁻⁶

L = length of the copper wire = 2.40 km = 2400 m

ρ = resistivity of copper wire = 1.68 x 10⁻⁸

resistance of copper wire is given as

R = ρL/A

inserting the above values in the formula

R = ( 1.68 x 10⁻⁸)(2400)/(53.5 x 10⁻⁶)

R = 0.753 ohm

8 0
4 years ago
52. A 33-tt ladder leans against a building so that the angle between the ground and the ladder is 80". How high does the
Ulleksa [173]

9514 1404 393

Answer:

  32.5 ft

Step-by-step explanation:

The length of the side opposite the given angle is found using the sine relation:

  Sin = Opposite/Hypotenuse

  height on building = (33 ft)·sin(80°) ≈ 32.5 ft

The ladder reaches about 32.5 feet up the side of the building.

_____

<em>Additional comment</em>

The maximum angle compliant with OSHA safety rules is 75.5°.

3 0
3 years ago
one digit from the number 9,484,558 is written on each of seven cards. what is the probability of drawing a card that shows 5?
Diano4ka-milaya [45]
Possibility or highly chances are that the five is going to get pulled because there are two of the fives and five isn't rare, so from the number 9,484,558 the number that would possibly be picked is one of the fives because there are two of the fives and five isn't rare if there is two of them, so the digit that would probably be pulled is one of the fives
4 0
3 years ago
Marvin used the Quantitative Reasoning Process to build a budget while he is going to college. He worked hard over the summer an
Llana [10]

For Marvin used the Quantitative Reasoning Process to build a budget while he is going to college. He worked hard over the summer and saved $2,595.9 to live on during the next two semesters of school. Marvin will receive a scholarship each semester for $958.35 money can Marvin spend each month, on average, for things like groceries, entertainment, and miscellaneous items is mathematically given as  

$4512.6

<h3>How much money can Marvin spend each month, on average, for things like groceries, entertainment, and miscellaneous items?</h3>

Savings with Marvin = $2,595.9

Scholarship amount  = $958.35

Total Scholarship amount received in 2 semesters = $958.35 X 2 = $ 1916.7

Now total money that Paolo have = (Savings with Marvin) + (Total Scholarship amount received in both semesters) = $2,595.9 + $1916.7 = $ 4512.6

Tuition & books cost  = $2000

Tuition & books cost for 2 semesters = $2000 X 2 = $4000

Housing cost for 2 semester contract =$1,000

Total expenses in books and housing = $4000+ $1000 = $5000

Money left with Marvin after Total expenses in books and housing = $ 4512.6 - $5000 = −487.4

This means he has overspent.

as no. of months in 2 semesters = 8

Amount that Marvin would be in debt each month = −487.4/8 = −$60.925

Read more about Arithmetic

brainly.com/question/22568180

#SPJ1

4 0
2 years ago
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